{"instruction": "You are an expert in event extraction. Please extract event types and event trigger words from the input that conform to the schema definition. Return an empty list for non-existent events. Please respond in the format of a JSON string.", "schema": ["potential therapeutic event", "adverse event"], "input": "An episode of leukoencephalopathy is reported in a 13-year-old girl who, after standard radiotherapy for a posterior fossa medulloblastoma, received 8 treatments with a protocol containing a 4-hour infusion of 500 mg/m2 methotrexate and 12 mg intrathecal methotrexate."}
{"potential therapeutic event": [], "adverse event": ["after "]}